-91.07% is the change from 560 to 50
Calculation steps:
[( 50 - 560 ) ÷ 560] x 100 = -91.07%
Formula
Percentage change = [(50 - 560) / 560] x 100
Subtract the new number by the original number
50 - 560 = -510
-510 ÷ 560 = -0.9107142857142857
-0.9107142857142857 x 100 = -91.07%